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Groin hernia: can dynamic magnetic resonance imaging be of help? (1998)

van den Berg, J. C. ; de Valois, J. C. ; Go, P. M. N. Y. H. ; [et al.]

Springer

European radiology 8 (1998), S. 270-273

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ISSN: 1432-1084

Keywords: Key words: Hernia ; inguinal ; MR technology ; Abdominal wall ; abnormalities

Source: Springer Online Journal Archives 1860-2000

Topics: Medicine

Notes: Abstract. This technical note describes the use of dynamic MRI in the diagnosis of groin herniations. A review of the anatomy of the groin is presented and 4 representative cases are described. This paper indicates that dynamic MRI can be used to confirm the diagnosis in patients with clinically evident groin herniations.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/s003300050377

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Determination of volatile amines in drug substances by capillary gas chromatography (1989)

de Haan, P. E. ; de Jong, D. ; van den Berg, J. H. M. ; [et al.]

Weinheim : Wiley-Blackwell

Journal of High Resolution Chromatography 12 (1989), S. 604-607

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ISSN: 0935-6304

Keywords: Capillary gas chromatography ; Two-phase acylation ; Aziridine ; 2-Chloroethylamine ; Chemistry ; Analytical Chemistry and Spectroscopy

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: The determination of small, water soluble amines such as aziridine and 2-chloroethylamine, in drug substances at trace levels is described. After removal of the bulk of the drug substance by extraction or precipitation, derivatization with acid chlorides is performed. In a two-phase (water-organic solvent) system, this derivatization reaction is accomplished almost simultaneously with the extraction of the product to the organic layer. The organic layer is analyzed by gas chromatography using on-column injection and selective detection. Detection limits are approx. 0.2 mg/kg for aziridine and approx. 0.5 mg/kg for 2-chloroethylamine.

Additional Material: 6 Ill.